/Engine/Plugins/Editor/WaveformEditor/Source/WaveformTransformationsWidgets/Public/WaveformTransformationRendererBase.h
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnMouseButtonUp ( [SWidget](API\Runtime\SlateCore\Widgets\SWidget) & OwnerWidget, const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) & MouseEvent )